40136856801712 has 80 divisors (see below), whose sum is σ = 85589353814688. Its totient is φ = 18081753661440.

The previous prime is 40136856801689. The next prime is 40136856801761. The reversal of 40136856801712 is 21710865863104.

It is a super-2 number, since 2×40136856801712² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40136856801712.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 734098408 + ... + 734153080.

Almost surely, 2^{40136856801712} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40136856801712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42794676907344).

40136856801712 is an abundant number, since it is smaller than the sum of its proper divisors (45452497012976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40136856801712 is a wasteful number, since it uses less digits than its factorization.

40136856801712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91718 (or 91712 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 40136856801712 in words is "forty trillion, one hundred thirty-six billion, eight hundred fifty-six million, eight hundred one thousand, seven hundred twelve".